Concurrent voice calls Cisco SF 100D-08 8-Port 10/100 Switch

how many concurrent voice call can be conducted at once with the cisco sf 100d-08 8-port 10\100 switch?

Christopher,
As far as concurrent voice calls we don't have any documentation as to how many it can support. It is strictly based on the bandwidth for the network as to how many calls it can handle.

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Need SNMP MIB files For Cisco SF 300-48 48-Port 10/100 Managed Switch

Hi All,
I need SNMP MIB files for Cisco SF 300-48 48-Port 10/100 Managed Switch.
I have gone through cisco site but not able to get it.
Can anyone please provide me.I have stuck with this.
Thanks
Ram

Hi Ram, yes the MIB can be used. The switches are essentially the same in many regards (especially on a software level).
I do not know the OID for bandwidth. If you're looking for a particular OID may be this tool helps you
http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?objectInput=dot1dTpPortTable&translate=Translate&submitValue=SUBMIT&submitClicked=true
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Using Cisco 3526 IPVC for Voice Calls as well

Does anybody know the latest capabilities of the Cisco 3526 gateway when used as a Voice gateway? The Cisco SRND for "Cisco IP Video Telephony", which was published in July 2004, states that the IPVC gateways do NOT support H.245 Empty Capabilities Set or H.450. So they will give you supplementary services such as Hold, transfer, etc. Version 3.0 of the 3526 documentation lists "Empty capability set support" as a feature, although it does not state H.245 or H.450.
Basically, I want to use a 3526 as a second Voice gateway as well as a Video gateway in a Call Manager deployment. I am just concerned that I won't get all the supplementary services when using it for voice calls.
Any input would be greatly appreciated.

I know the product can support voice, my main concern was the support for ECS (Empty Capabilities Set) within H.245. If it does not support this my IP Phones will not be able to use the supplementary features such as Hol;d, Transfer, etc,etc.
I have escalated this to Cisc here in the UK for clarification. I am sure it will, but I just want clarification from Cisco or somebody that has used it in the same scenario.

ASA 5510 - how many concurrent VOIP calls can pass through?

Hi all,
I wonder how many concurrent VOIP calls can handle Cisco ASA 5510, any idea?
Gegham

hi Gegham,
Basically what the values of 50,000 and 130000 connections indicate are lab values tested with 80% TCP and 20% udp traffic. (according to table a-2 in the doc below)
http://www.cisco.com/en/US/docs/security/asa/asa72/configuration/guide/specs.html#wp1170941
RTP is udp traffic but in case of an asa and considering a customer scenario what happens is...
1 voip call = 1 control connection (h323,sip,sccp) + 2 or 4 rtp connections
-so a call will in total easily consume 5 or more connections depending on control connections you have set up .
-also this number differs depending on if the call is voice only or video.
So to simply answer your questions...
1>the number of connections that a call consumes depends on the above factors.
2>Also there is no hard number on the number of calls an asa can handle because this depends on the controls you use ...including nat and inspections.
Thanks,
Karthik

Route ISDN Voice calls over LAN/WAN

Is it possible within the relms of normal Cisco LAN to have an ISDN Line coming into one building, Connect it to a LAN/WAN so we could pick up the voice calls on the ISDN on the other end, In a different location?

There are no CCM logs to tell you that, CUCM has nothing to do with the RTP, this is usually QoS issues, you always hear "nothing has changed" but they often overlook things they think are not worth mentioning, or that they think would have nothing to do. Make sure really nothing has changed.
The only way to look at this would be to run a sniffer trace on both ends to see what you send, and you receive.

Bandwidth requirement for voice calls

Hi All,
Need expertise advise on the following concern about voice call.
1. Bandwidth requirement for video call across all other endpoint(using Polycom / Lifesize end point at their end)
a)Standard Video
b)1K HD Video
c)4K HD Video
2. Plus can we determine bandwidth required for all the following below:
a. 1 to 1 VC end point ( Cisco TP – Cisco TP)
b. Bridge call ( Cisco TP to Polycom / Lifesize)
c. 1 to 1 VC end point ( Cisco TP – Polycom / Lifesize)

Thanks for the info Wayne. I missed out information about the endpoint.
Client using CTS 3010. Acoording to datasheet it says
11.9 Mbps (1080p, 30 fps best motion handling), 10.1 Mbps (1080p, 30 fps better motion handling), 8.8 Mbps (1080p, 30 fps good motion handling)
6.4 Mbps (720p, 30 fps best motion handling), 4.5 Mbps (720p, 30 fps better motion handling), 3.1 Mbps (720p, 30 fps good motion handling)2
My question is does the bandwidth required for both ways or only one way?
And I'm aware CTS 3010 doesn't support 4K video.

3620 + isdn T1 voice call to mobile phone network

All
When my mobile phone switched off, we will recieve a message saying that my phone is out of reach or power off.
But I use 3620 + ISDN T1 call to my off mobile, I still recieve a ringtone from VOIP (fxs)?
Why my ISDN or VOIP not receiving the same "power off" message?

Thx sbilgi for reply.
Really thx
I had tried...
dial-peer voice xxxx pots
destination-pattern xxxxT
progress_ind progress enable 8
direct-inward-dial
port 1/1:23
but still not ok....
Later I had also insert
voice call convert-discpi-to-prog (global configuration)
still not ok....
http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a0080111b58.shtml#busytone
3620gw#sh version
Cisco Internetwork Operating System Software
IOS (tm) 3600 Software (C3620-J1S3-M), Version 12.2(15)T10, RELEASE SOFTWARE (fc2)
I had checked with my ISDN line provider, they said their line should be ok.

IPhone 5s Voice Call Issues

I've had an iPhone 5s (upgraded to 8.1.3) since mid-November and have been experiencing difficulties on voice calls ever since (I switched carriers as well). When calling specific contacts (family, friends etc.), the calls sound as though as I am on speakerphone, and there is a great deal of static and distortion present as well. The beginning of the call sounds as though the network is about to drop it before recovering it in a much lower quality. To the best of my knowledge, I have tried absolutely everything at this point, including: swapping the handset (three times), sim card (three times), resetting the device and even changing my number (was informed that it could have something to do with the "porting" of a number profile from one carrier to another). None of these moves have worked and I am still trying to decipher why I am encountering this problem (I have been in constant contact with my carrier who appears to have exhausted all ideas).
Any suggestions or thoughts are greatly appreciated.

I was having the same problem and also loosing battery life - it suddenly happened. I went online and saw where someone said to get rid of all the unused apps still sitting there, deleted all the old posts and yea! suddenly the problem has been fixed. Hadn't deleted the unused apps in quite sometime, so obviously draining everything.

IPhone 5S: does anybody has this problem. During a successful voice call all of a sudden people can't hear me while I can hear them

iPhone 5S: does anybody has this problem. During a successful voice call all of a sudden people can't hear me while I can hear them. Signal is strong and call quality (me hearing the other) is still very good but it looks as if I’m going on mute while I’m not muting my iPhone. When dropping the call and re-dialing it works fine again. It’s a brand new iPhone 5S but it now happened already 4 or 5 times in 2 days.
It feels like a hardware/iOS problem and not a network issue. It happend with iOS7.03 but I just see 7.0.4 is available so will install that one now.
Thanks in advance for feedback
Best regards,
Marco

Hello Jeff,
Thank you for providing so much detail about the issue you are experiencing with the audio on your iPhone. I would be concerned too if the audio on my iPhone was not working unless using speaker phone. I found an article with some steps to take when you are experiencing issues like this:
iPhone: Can't hear through the receiver or speaker
http://support.apple.com/kb/TS1630
Thank you for using Apple Support Communities.
Best,
Sheila M.

IPhone 5s screen flashes on and off during voice calls?

Operation is perfect with every other app except whenever the phone detects I'm making or receiving a voice call. No problem on facetime.
The screen will instantly black out and to bring it back I have to press the main button, then screen will reappear but only for an instant before blacking out again.
It does not matter if the phone has been in standby or if I've been actively using it as the call comes in.
Its about the most frustrating thing I can imagine.
One clue, while I'm talking the phone will often mute itself as if my cheek activates the mute function.
I use no screen protector but I do use a case, it still does it when I take the phone out though.
It has done this since new and through at least one software update
Any help really appreciated, thanks,

My wife rang Apple and while both of us spoke to Apple on the land line using hands free and spoke to each other using our iPhone 5s we were able to see that my big paws shadowed the proximity sensor each time I moved in to stab a button! Problem solved! I didn't even know there was a proximity sensor and your reply would have led me to it, thanks.

IPhone 4 voice call issues

My iPhone 4 sometimes goes into Facetime in the middle of a voice call. I don't have a screen protector that might block the proximity sensor. I have done a full reboot and am on the latest iOS. Any ideas what is wrong?

I've been having a very similar issue that just started last night. I keep dropping calls and when I try to call out nothing happens at all. I cannot browse Safari through 3G either. It keeps coming and going. I was able to finally place a call out and then tried making another call later and it wouldn't work again. I tried the restore as well and nothing works!
I do not know if I should contact AT&T or Apple for the issue. I do have the extended warranty that I purchased with the phone but about a week after I got the iPhone 4 I had to have it replaced for issues I am not even sure that they would replace it again. I do not have a home phone I rely solely on my cell so I cannot wait to have it fixed or replaced but I am not going to keep a phone that doesn't work especially after paying so much for it!

Voice Calls Breaking Up on AT&T in the US

This is a continuation of the thread I started below:
http://discussions.apple.com/thread.jspa?threadID=1653137
To summarize, voices break up(or cut in and out) when I am on a voice call. I live in the Northern NJ area and I haven't traveled lately so I haven't had a chance to see if I have this problem outside my area.
I determined that the problem is not with my iPhone for the reasons below.
1. I exchanged the iPhone for a new one and experienced the same exact problem.
2. I put my SIM card in another GSM phone(Nokia N70) and experienced the same problem when I used the Nokia phone for voice calls on the AT&T network.
Does anyone else experience this symptom on AT&T voice calls in other parts of the US?
I am planning to get a cell ranger signal booster to see if it helps.

I live and work 30 miles apart in California. I have noticed that voice calls are good were I live but break up were I work. I also noticed that the 3G signal is weaker were I work.
The last few days at work were very windy and the voice call broke up a lot to the point were I disabled 3G just to hear the person I was talking to. For some reason the wind seems to affect the quality of the voice 3G.
Side Note: Since my office is in a area were 3G is not that stable the signal will keep switching from EDGE and 3G when I'm inside my building. This seems to were the battery down faster so I found it better to keep 3G off when I'm at work. This does not happen in my home town were I get a great 3G signal.

Voice calls breaking up on EDGE with iphone and AT&T

When I am on a voice call using the iPhone on EDGE the callers voice often breaks up. This also happens when I dial voicemail and listen to messages.
This is my first time using AT&T. Is this normal for AT&T's EDGE network or is this possibly a problem with my iPhone. This happens even if I have full bars on EDGE. I've tried resetting the phone as new and getting a new sim card and updating the firmware but voices still break up. Has anyone else experienced this?

I got a replacement iphone and the problem with voice calls breaking up persists. I have no idea what the problem is since there are so many variables and I don't have all the information. I just know that I never had this sort of problem in the 9 years I was on Verizon with any phone. I really enjoy this device for everything besides the phone functionality. It would be cool if I could just pay for data on this phone without the voice so I could get a Verizon phone for voice and keep the iphone for data but I know that would never happen. Well, I still have a couple weeks to figure out what I'm going to do.

IPhone 4 Voice call problem when wifi is active

Not always, but randomly my voice calls (send/receive) establishes properly. However, neither me or the other party can hear anything. The most common times it occurred, is when the wifi is active. Any suggestion anyone please?
Additional Info:
I had my iPhone replaced due to the home button malfunction, and after a couple weeks, this started happening. Since I don't have warranty coverage anymore I can't replace it again. Came with iOS 5.0.1. After this started happening quite frequently, I upgraded to 5.1.1. Still same thing. A non-funcitoning home button was better than a non-functioning phone! Feels like I've been cheated !!

I think I've pinpointed the problem!
Whenever I use data (EDGE / Wi-Fi), the handset becomes quite heated. If I initiate a voice call at that moment, the dialer starts with the 'speakerphone' icon being pressed.Given that, no party can hear no party.
However, after a minute or two (when not using data) the handset becomes cold again (quite fast) and then if I initiate a call, the 'speakerphone' icon is not being pressed anymore and everything is normal!
Really donno, what is actually creating this strange problem!! Overheating battery? Overheating wi-fi chip? Overheating any other chip? Firmware? or just my luck!!
P.S: To keep the phone operation smooth, I've disabled wifi & cellular data at the moment! And all is running well. So, it must be something with data usage!

IPhone 5 voice call quality fade in and out. Noise Cancellation interference?

I've been having this huge problem with the iPhone5. The evidence i've collected seems to indicate this is a problem with all iPhone5's.
On calls in certain places both indoors and outdoors, the callers voices over the iPhone5 fade in and out. Their voices occasionally completely fade completely away, and only come back momentarily. The low volume for 50% of the time forces me to raise the volume, but raising the volume does not help because when the voice does come back, the volume is too loud for my ears.
I went back to the Apple store and they are not able to help me. They suggested a clean restore, which I did. They offered to replace the phone, which I did, but it is the same problem.
- iPhone 5 vs. iPhone 4S, the fading does not occur. I make the call to the same voice mail system I have, and the sounds from the other side are consistently the same volume for the 4S, but fades in and out for the 5.
- I connected up a 8mm jack between my iPhone 5 and my mac in an attempt to record this problem. In that instance, the sounds from the voice mail DO NOT fade in and out. I did find out that the dynamic range on the iPhone 5 is MUCH greater than that of the iPhone 4S, for some strange reason.
- When I hold the phone up to my ear, the fading in and out does occur, but it is less noticeable. But it's still there.
- When I leave my work area the problem goes away. However, because the iPhone 4S on the same AT&T service does not have this problem, this leads me to believe it's NOT a lack of transmission power from the AT&T cell tower. Rather, it is a reception issue at the iPhone5 side.
- I turned off LTE, data and then made the calls. Same issue.
I use this phone to make 60 minute calls for conference calls frequently. I cannot use it. Please advise. I am seriously considering returning this phone. Except i've sold my old iPhone 4 already. I'm in a bad place. Please help.
Here's another post of a fellow with the same exact problem.
http://forums.macrumors.com/showthread.php?t=1456404
Apple, please look into this. I believe this is a problem with the noise cancellation software.

I've got an update on this problem with fading volume. I've isolated it to the set volume on the phone for voice calls when using headphones. When the headphone volume is set between 1 and 6 (out of 16 squares) the callers volume will consistently fade in and out. The fading which is normal to zero volume at 2-5 Hz is serious enough that normal conversation is impossible. When the volume is raised above 6/16 then the callers voice stabilize and I can hear all their words again. Unfortunately, at 6/16 volume their voices are too loud for the headphones.
Furthermore, when headphones are plugged in, and I initial a call after the iphone5 was idle for several minutes, the first dial tone has preceded by a very loud pop an the tone, as though there was too much pressure (charge) that was dissipated all at once.
Other details:
- I used 3 different earphones, iPhone 4 headphones, altec earphones, an the new iPhone 5 earbuds. Same.
- I turned on and off lte, data, Bluetooth, wifi. Problem persists unaffected.
- when switching to iPhones earpiece and mic, the fading is gone.
- I have 3 out of 5 bars where I teste this, in the city outside and on hwy 5 in central California. Same symptoms in all places I've tested.
- I have exchanged my phone at the apple store. Same issue with both iPhones an I suspect all ipjone5s.
- the ipjone4s does NOT have this problem when the volume is set lower. I can tell that the iPhone 5 must have a new audio filter to make the sounds have larger dynamic range. I liked the 4s better, because it is easier on the ears!

Concurrent voice calls Cisco SF 100D-08 8-Port 10/100 Switch

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